UPDATE _ Sunday, 8:30 p.m.
The south has fared considerably better than the north today, and this trend will continue. One slow-moving upper-level disturbance is presently located over Ulster and will drift off towards Scotland on Monday. A second very chilly upper level low that is phasing with surface low pressure near Iceland today will drift southeast and arrive over Donegal Bay late Monday night, taking most of Tuesday and Wednesday to cross the north. While today's rain gradually tapers off to drizzle across the north tonight and a few breaks appear in the cloud cover mid-day Monday, this second disturbance will bring heavy rain, very chilly temperatures and even the risk of sleet or snow at higher elevations. Some of this unsettled weather will spread into central and parts of southern counties by Tuesday, but Donegal, Mayo and nearby counties appear likely to get the worst of it. Temperatures may be held as low as 5-8 C at times on Tuesday, and hills above 500m have the risk of snow or sleet with temperatures of 2-4 C. There may be some risks to safety of livestock on higher terrain, and it would definitely not be a good time to be camping or climbing with conditions no better than mid-January on average. The worst of this second round will last from early Tuesday to early Thursday.
As always, the impacts on Dublin and most of the south will be much less dramatic but I think that everyone will feel the chill at some point as this unusual weather pattern comes and goes. The eventual end game for this slow moving storm seems to be a leisurely return to base as the low starts to head north and then west later in the week. This will keep Ireland in a rather chilly westerly flow but as the clouds lift and break somewhat, temperatures should struggle back to the mid-teens.
More details in the morning forecast.
Last edited by M.T. Cranium; Yesterday at 20:35.
Did he just say snow? In June?